Rod responses produce the peripheral flicker illusion

When a green/blue object is presented on a red background and viewed in peripheral vision, the object is seen to flash twice or to flicker (the peripheral flicker illusion). We showed that the ratio of photopic luminances of the object and the red background determines the optimal photopic luminance...

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Main Authors: Meidi Niikawa, Hiroyuki Ito
Format: Article
Language:English
Published: SAGE Publishing 2025-03-01
Series:i-Perception
Online Access:https://doi.org/10.1177/20416695251333732
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author Meidi Niikawa
Hiroyuki Ito
author_facet Meidi Niikawa
Hiroyuki Ito
author_sort Meidi Niikawa
collection DOAJ
description When a green/blue object is presented on a red background and viewed in peripheral vision, the object is seen to flash twice or to flicker (the peripheral flicker illusion). We showed that the ratio of photopic luminances of the object and the red background determines the optimal photopic luminance of the green/blue object required for the illusion to occur. The results were analyzed using scotopic luminance to investigate the role of rod responses. It was found that the scotopic luminance of the green/blue object should be higher than that of the red background for the illusion to occur. This suggests that the red background enhances the flickering impression of the object when there is a sudden increase in the rod responses.
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institution Kabale University
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publishDate 2025-03-01
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series i-Perception
spelling doaj-art-a4260862f46f47b7b1fcd4917fb4de9a2025-08-20T03:50:06ZengSAGE Publishingi-Perception2041-66952025-03-011610.1177/20416695251333732Rod responses produce the peripheral flicker illusionMeidi NiikawaHiroyuki ItoWhen a green/blue object is presented on a red background and viewed in peripheral vision, the object is seen to flash twice or to flicker (the peripheral flicker illusion). We showed that the ratio of photopic luminances of the object and the red background determines the optimal photopic luminance of the green/blue object required for the illusion to occur. The results were analyzed using scotopic luminance to investigate the role of rod responses. It was found that the scotopic luminance of the green/blue object should be higher than that of the red background for the illusion to occur. This suggests that the red background enhances the flickering impression of the object when there is a sudden increase in the rod responses.https://doi.org/10.1177/20416695251333732
spellingShingle Meidi Niikawa
Hiroyuki Ito
Rod responses produce the peripheral flicker illusion
i-Perception
title Rod responses produce the peripheral flicker illusion
title_full Rod responses produce the peripheral flicker illusion
title_fullStr Rod responses produce the peripheral flicker illusion
title_full_unstemmed Rod responses produce the peripheral flicker illusion
title_short Rod responses produce the peripheral flicker illusion
title_sort rod responses produce the peripheral flicker illusion
url https://doi.org/10.1177/20416695251333732
work_keys_str_mv AT meidiniikawa rodresponsesproducetheperipheralflickerillusion
AT hiroyukiito rodresponsesproducetheperipheralflickerillusion